Stop-motion mechanism for yarn-winding machines



(No Model.) 2 SheetsSheet 1.

E. A. MOORE. STOP MOTION MECHANISM FOR YARN WINDING MACHINES.

No. 378,842. v Patented Nov. 29, 1887.

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'2 Sheets-Sheet 2.

( No Model.)

v E. A. MOORE. STOP MOTION MECHANISM FOR YARN WINDING MACHINES. No. 373,842.

Patented, Nov. 29, 1887.

Edward uf. (11507 6,

N, PETERS. Phmouthognpher. Wuhing'ton. D. C.

U IT D STATES PATENT O FicE.

EDwAE ALEsToN MOORE, or WESTFORD, MASSACHUSETTS.

STOP-MOTION MECHANISM FOR YARN-WINDlNG MACHINES.

4 SPECIFICATION forming part of Letters Patent No. 373,842, dated November 29, 1887.

Application filed April 6, 1887.

To all whom, it may concern:

Be it known that I, EDWARD ALEsToN MOORE, of WVestford, in thecounty of Middle sex, of the Commonwealth of Massachusetts,

- 5 is a side view of the latch (l, hereinafter described.

In winding yarn on a spool it frequently happens that more is wound than is required, inwhich case the excess has to be unwound and generally becomes so much waste.

The object of my invention is to prevent the winding of any such additional amount on the spool, and I accomplish this by mechanism which at the proper time raises the spool,with its load, entirely off or out of contact with the roller or drum by which the spool is revolved for winding the yarn upon it.

In the drawings, A denotes the frame of the spoofing-machine, and B the drum or cylinder, against whose periphery the spool or its load bears while such drum or cylinder is in revolution.

The spool shown at O is supported by and so as to be capable of freely revolving within a furcated carrier, D, which at the middle of its rear part is hinged or pivoted to the rear part or arm of a tilting lever, E, fulcrumed to a projection, F, extending from a stationary fiat bar, G, that goes across the upper part of the frame A. At its middle there is pivoted to the spool-carrier D a pawl, H, to co-operate with what Iterm the pawl-retainer I, which is an arm pivoted to projections a a from the bar G and formed as shown, such arm when horizontal resting at its forward part upon the said bar. When the spool is being wound with yarn, the pawl bears on the bar G and against the end of the retainer, in which case the spool- Serial No. 233,847. (No model.)

carrier D will be free to move upward independently of the lever to which it is attached.

The next elementary part of the machine to be described is that which, at the time the necessary amount of yarn may have been wound on the spool, operates to force or lift upward the retainer out of engagement with the pawl, in order that the lever may tilt and raise the spooLwith its load, off the cylinder or drum B. I would observe that, the rear arm of the lever and the parts connected with it being much heavier than the front arm of such lever, the lever will tilt backwardly on the retainer being raised above the end of the pawl.

In the drawings I have shown two mechanisms, either of which may be used, the first one being for forcing upward the retainer and the second one being for lifting it, the latter of which I do not claim in this application.

Extending down from the carrier D is a projection, b, in front of which is a screw, 0, which is screwed through the upper part of a latch, d, that is adapted to slide vertically through a stationary projection, e, such latch being provided with a spring, f, to press it rearwardly, so as to engage it with the projection. At its lower part the said latch is pivoted to a lever, 9, arranged and having a weight or knob, 72, fixed upon one arm of it, as represented. From the other arm of the lever a finger, z, extends up to the retainer, and there projects upward from the lever a rod, 7c, having on its upper end a handle, Z.

While the spool is being wound with yarn, the projection b will be gradually forced toward the screw 0, and on a sufficient amount of yarn having been wound on the spool the latch, by the pressure of the projectiox against the screw, will have been moved un "l the shoulder at of the latch will have been forced off the part 6, which taking place the weighted lever will be moved by its weight in a manner to force upward the retainer and allow the pawl to be moved under it and the lever E to tilt and raise the carrier, so as to lift the spool off the drum or cylinder B. By taking hold of the handle I and moving the rod is backward the weighted lever may be tilted, so as to raise the latch into engagement with the projection through which it extends The mechanism for raising the retainer by ICO lifting it consists of abent lever, 11-, fulcrurned to the spool-carrier and having one arm connected with the latch by a chain, 0, and the other arm extended under the spool. On the load of the spool attainingits desirable diameter it will have borne upon and moved the lever snfficiently for it to raise the pawlretainer above or out of engagement with the pawl, to enable the latter to be forced backward and the spool, with its load, to be raised off the drum or cylinder B.

From the above it will be seen that on the spool being moved off the drum B the latter, though continuing to revolve, will not revolve the spool, in which case the winding of the yarn thereon will cease.

EDWARD ALESTON MOORE.

Witnesses: I

GEO. H. STEVENS, SAMUEL B. WYMAN. 

